This calculator outputs the how fast the Lamborghini Gallardo LP560-4 can go in each gear as calculated by the gear ratios, engine redline and tire size.
The ultimate top speed may be limted by the power, drag and aerodynamics of each individual car.

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Tire Size(345/30/20)

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Tire Diameter(inches)

Final Drive Ratio

Redline (RPM)

1st Gear

2nd Gear

3rd Gear

4th Gear

5th Gear

6th Gear

7th Gear

8th Gear

RPM

1st Gear

2nd Gear

3rd Gear

4th Gear

5th Gear

6th Gear

7th Gear

8th Gear

500

2.87

4.64

6.52

8.35

10.12

12.2

0

0

600

3.45

5.57

7.82

10.02

12.15

14.64

0

0

700

4.02

6.5

9.12

11.68

14.17

17.08

0

0

800

4.6

7.43

10.43

13.35

16.19

19.52

0

0

900

5.17

8.35

11.73

15.02

18.22

21.96

0

0

1000

5.75

9.28

13.03

16.69

20.24

24.4

0

0

1100

6.32

10.21

14.34

18.36

22.27

26.84

0

0

1200

6.9

11.14

15.64

20.03

24.29

29.27

0

0

1300

7.47

12.07

16.94

21.7

26.32

31.71

0

0

1400

8.05

13

18.25

23.37

28.34

34.15

0

0

1500

8.62

13.92

19.55

25.04

30.36

36.59

0

0

1600

9.2

14.85

20.85

26.71

32.39

39.03

0

0

1700

9.77

15.78

22.16

28.38

34.41

41.47

0

0

1800

10.35

16.71

23.46

30.05

36.44

43.91

0

0

1900

10.92

17.64

24.76

31.71

38.46

46.35

0

0

2000

11.5

18.56

26.07

33.38

40.49

48.79

0

0

2100

12.07

19.49

27.37

35.05

42.51

51.23

0

0

2200

12.65

20.42

28.67

36.72

44.54

53.67

0

0

2300

13.22

21.35

29.98

38.39

46.56

56.11

0

0

2400

13.8

22.28

31.28

40.06

48.58

58.55

0

0

2500

14.37

23.21

32.58

41.73

50.61

60.99

0

0

2600

14.95

24.13

33.89

43.4

52.63

63.43

0

0

2700

15.52

25.06

35.19

45.07

54.66

65.87

0

0

2800

16.1

25.99

36.49

46.74

56.68

68.31

0

0

2900

16.67

26.92

37.8

48.41

58.71

70.75

0

0

3000

17.25

27.85

39.1

50.08

60.73

73.19

0

0

3100

17.82

28.77

40.4

51.74

62.75

75.63

0

0

3200

18.4

29.7

41.71

53.41

64.78

78.07

0

0

3300

18.97

30.63

43.01

55.08

66.8

80.51

0

0

3400

19.55

31.56

44.31

56.75

68.83

82.95

0

0

3500

20.12

32.49

45.62

58.42

70.85

85.38

0

0

3600

20.7

33.42

46.92

60.09

72.88

87.82

0

0

3700

21.27

34.34

48.22

61.76

74.9

90.26

0

0

3800

21.85

35.27

49.53

63.43

76.92

92.7

0

0

3900

22.42

36.2

50.83

65.1

78.95

95.14

0

0

4000

23

37.13

52.13

66.77

80.97

97.58

0

0

4100

23.57

38.06

53.44

68.44

83

100.02

0

0

4200

24.15

38.99

54.74

70.11

85.02

102.46

0

0

4300

24.72

39.91

56.04

71.77

87.05

104.9

0

0

4400

25.29

40.84

57.35

73.44

89.07

107.34

0

0

4500

25.87

41.77

58.65

75.11

91.09

109.78

0

0

4600

26.44

42.7

59.95

76.78

93.12

112.22

0

0

4700

27.02

43.63

61.26

78.45

95.14

114.66

0

0

4800

27.59

44.55

62.56

80.12

97.17

117.1

0

0

4900

28.17

45.48

63.86

81.79

99.19

119.54

0

0

5000

28.74

46.41

65.17

83.46

101.22

121.98

0

0

5100

29.32

47.34

66.47

85.13

103.24

124.42

0

0

5200

29.89

48.27

67.77

86.8

105.26

126.86

0

0

5300

30.47

49.2

69.08

88.47

107.29

129.3

0

0

5400

31.04

50.12

70.38

90.14

109.31

131.74

0

0

5500

31.62

51.05

71.68

91.8

111.34

134.18

0

0

5600

32.19

51.98

72.99

93.47

113.36

136.62

0

0

5700

32.77

52.91

74.29

95.14

115.39

139.06

0

0

5800

33.34

53.84

75.59

96.81

117.41

141.49

0

0

5900

33.92

54.77

76.9

98.48

119.43

143.93

0

0

6000

34.49

55.69

78.2

100.15

121.46

146.37

0

0

6100

35.07

56.62

79.5

101.82

123.48

148.81

0

0

6200

35.64

57.55

80.81

103.49

125.51

151.25

0

0

6300

36.22

58.48

82.11

105.16

127.53

153.69

0

0

6400

36.79

59.41

83.41

106.83

129.56

156.13

0

0

6500

37.37

60.33

84.72

108.5

131.58

158.57

0

0

6600

37.94

61.26

86.02

110.17

133.61

161.01

0

0

6700

38.52

62.19

87.32

111.83

135.63

163.45

0

0

6800

39.09

63.12

88.63

113.5

137.65

165.89

0

0

6900

39.67

64.05

89.93

115.17

139.68

168.33

0

0

7000

40.24

64.98

91.23

116.84

141.7

170.77

0

0

7100

40.82

65.9

92.54

118.51

143.73

173.21

0

0

7200

41.39

66.83

93.84

120.18

145.75

175.65

0

0

7300

41.97

67.76

95.14

121.85

147.78

178.09

0

0

7400

42.54

68.69

96.45

123.52

149.8

180.53

0

0

7500

43.12

69.62

97.75

125.19

151.82

182.97

0

0

7600

43.69

70.55

99.05

126.86

153.85

185.41

0

0

7700

44.27

71.47

100.36

128.53

155.87

187.85

0

0

7800

44.84

72.4

101.66

130.2

157.9

190.29

0

0

7900

45.42

73.33

102.96

131.86

159.92

192.73

0

0

8000

45.99

74.26

104.27

133.53

161.95

195.17

0

0

8100

46.57

75.19

105.57

135.2

163.97

197.6

0

0

8200

47.14

76.11

106.87

136.87

165.99

200.04

0

0

8300

47.72

77.04

108.18

138.54

168.02

202.48

0

0

8400

48.29

77.97

109.48

140.21

170.04

204.92

0

0

RPM

1st Gear

2nd Gear

3rd Gear

4th Gear

5th Gear

6th Gear

7th Gear

8th Gear

Some additional information on how these are calculated:

When D is the diameter of the tire, the car moves forward a distance πD with each revolution of the tire. If there are F revolutions per unit of time, it moves forward at a speed of πD´F per unit of time. If D is in inches and F is in revolutions per minute (rpm), the above result will be in inches per minute. There are 63,360 inches in a mile and 60 minutes in an hour, so one inch per minute equals 60/63360 miles per hour or 1/1056 mph. So we have the following formula:

V(mph) = D(in) ´ F(rpm) ´ (π/1056)

In the automotive industry, the coefficient 1056/π is usually taken to be equal to 336 (exactly it is 336.1352398...) and the formula corresponding to the above is:

(mph)(gear ratio)(336) = (tire diameter in inches)(rpm)

With the above numerical approximation, both formulas are identical if we consider that (rpm)/(gear ratio) is the rate of rotation of the tires. So the "gear ratio" as the number of rotations of the driveshaft for each turn of the tire. This ratio is normally more than 1, except in overdrive gear. So, calling R the "gear ratio", your final answer is:

V(mph) = D(in) ´ F(rpm) ´ (π/1056) / R

or, approximately: V = (D ´ F) / (336 ´ R)

where V is the velocity (in mph), D the tire diameter (in inches), F the engine rpm, and R the gear ratio.